Thermometer.



PATBNTBD FEB. 4, 1908.

S. LACHAPELLE.

THERMOMETBR. APPLICATION FILED AUG. 1, 1907.

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Witnesses:

Attorneys sEvERI'N L AGHAPELLE, or MONTREAL,

. UNITED srArEs PATENT OFFICE.

QUEBEC, CANADA, ASSIGNOR OF ONE-FOURTH TO GEORGE W. PARENT AND ONE-FOURTH TO-GASTON DE WERTHEMER,' BOTH OF MON- TREAL, QUEBEC, CANADA.

THERMOMETER.

have invented certain new and useful Im-' provements 1n .rmometers and I do herey-declare that the followfinfisnnfuhlear,

and exact description of the invention, such 7 as will enable others skilled in the art to a which it ,appertains to make and use the same.

My invention relates to thermometers. The object of my invention'is to rovide a thermometer particularly adapted or use in the home, having means fenindicating the condition of a patient to a person unskilled in the medical profession.

M invention consists of the construction, combination and arran ement of parts, as herein illustrated, described and claimed.

In the accompanying drawings, forming part of this application, I have illustrated one form of embodiment of my invention, in which drawingssimilar reference characters designate corresponding parts, and in which:-

Figure lis a front elevation; Fig. 2 is a longitudinal central section; Fig. 3 is a transverse section taken approximately on line 33 of Fig. 2 looking in the direction indi- Y cated by the arrow; Fig. 4 is a transverse section taken approximately on line 4-4 of Fig.

2 lookin in the direction indicated by the arrow; ig. 5 is a transverse section taken approximately on line 5-5 of Fig. 2 looking in the direction indicated by the arrow; and,

Fig. 6 is a transverse section taken approximately on line 6-6 of Fig. 2 looking 1n the direction indicated by the arrow.

Broadly speaking, my invention is char,

acterized by a tube closed at both ends and having therein a body of mercury, forming the ordinary thermometric column. This tube is incased in an oval sha ed casing having'itslower end sealed on t e column and having disposed therein a glass plate containing in written language indications of the physical condition of a patient to whom the thermometer is applied. The upper end of the casing is sealed so that a drop of the material forming the casin rests on the up- {per endof' the strip or pate and holds it rmly in position In the use Of-OIdiIIBJY-JfOI'IIiS of clinical Specification of Letters Patent,

Application filed August 1.1907- Serial No. 386.577-

which is welded to the column.

Patented Feb. 4, 1908.

thermometers it is necessary for the user to have a knowledge of physiology in order to determine the danger point of a patients temperature, and to avoid this ObJGClJlOIl I provide in my thermometer a plainly printed strip indicating-the normal and dangerous conditlonsof a paticnt, and also glvmg 1n- It will be understood that all of the parts invention are formed of glass, for

of my I hygienic reasons and also to permit the inin a passive condi' closed strip being'seen through its protects mg casement.

- Referring to the drawing 1 designates a casin of glass having a pointed end 2 which is we ded to athermometric column 3 at a point adjacent its lower end, which lower end is filled with a body of expansible fluid 4 such as mercury or alcohol.

The column 3 is provided with a bent portion 5 and extends within the casing 1 to a point adjacent its end opposite to that A glass strip 6 in dis osed Within the casing 1 so that its lower end rests against and is held by the bent portion 5 of the column 3, and its upper end is held in position by a drop of glass 7 which is formed when the upper end of the casing 1 issealed.

The casing 1 performs the double function of retaining the strip 6 in place and at the same time rotects the column 3 from the heat of the and of the user.

The strip 6 is provided with a temperature scale showing 37-, 38 and 40 degrees C. and the corresponding degrees F. Between the degrees of the scale indicatin 37 and lower degrees C. there is a space esignated by the words .Normal condition between 37 and 38 degrees C. there is a space 10 designated by the words Danger coming between 38 and 40 of the relation 9, swear of the perdicative of the physical condition designated by the son to whom the column is applied an degrees there is a space and, above 40 dewords Doctor at once;

grees C. there is a space 12 for advertising transparent casing disposed around the colmatter. Advertising matter may likewise umn and strip.

be placed on the rear face of the strip 6. 2. In combination with a thermometric These designations of normal, danger, column, having a bent portion, a strip disetc., indicate to the user the physical condiposed with one endagainst the bent portion tion of the patient to whom the lower end of the column and provided with sections inof the thermometer column is applied, withdicativeof the physical condition of the perout such user having a particular knowledge son to whom the column is applied with a transparent casing disposed around the column and strip and having its upper end closed and attached to the upper end of the strip.

In witnesswhereof I have hereunto set my hand in the presence of two witnesses.

SEVERIN LACHAPELLE.

between the temperature of the patient and his physical condition with relation to health or disease. v

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is 1. In combination w1th a thermometric column, having a bent portion, a strip disl/Vitnesses: posed with one end against the bent portion 1 C. C. COUSINS,

' E. M. SLINEY.

of the column and provided with sections 1n- 

